SIGMA series of Moulded Case Circuit Breakers is one of our new type products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 800V and used for circuit of A.C. 50Hz, rated operating voltage AC 400V(or below), rated operating current upto 800 A for infrequent over and starting of the motors. The products conforms IEC 60497-2 standards.